题目内容

1
5
+
2
5
=
5
8
-
3
8
=
1
2
+
1
3
=
3
4
-
1
2
=
1
8
+
3
8
=
5
9
+
1
3
=
1
2
-
1
10
=
3
5
+
1
15
=
8
9
+
1
18
=
7
11
+
4
11
=
5
6
-
2
3
=
1-
1
4
=
分析:本题按照分数加减法的运算法则计算,分母不同的要先通分.
解答:解:
1
5
+
2
5
=
3
5
5
8
-
3
8
=
1
4
1
2
+
1
3
=
5
6
3
4
-
1
2
=
1
4
1
8
+
3
8
=
1
2
5
9
+
1
3
=
8
9
1
2
-
1
10
=
2
5
3
5
+
1
15
=
2
3
8
9
+
1
18
=
17
18
7
11
+
4
11
=1
5
6
-
2
3
=
1
6
1-
1
4
=
3
4
故答案为:
3
5
1
4
5
6
1
4
1
2
8
9
2
5
2
3
17
18
,1,
1
6
3
4
点评:本题是基本的计算题,计算时要细心,注意结果要化成最简分数.
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网